I was just comparing the # of servings for both charts and wanted to get opinions on which was most accurate. Some if the serving #'s were a big difference. For instance Wiltons has an 8 in. serving 24 but Earlen's 8 in. serves 15

Here's a thread from a few days ago:
http://cakecentral.com/cake-decorating-ftopict-701732-earlene.html+wilton

Now this is just my PERSONAL opinion.

I think Earlene's chart is good for a cake that is being served in a home setting. The average person, serving a simple (10" say) birthday cake, doesn't know from cutting guides/charts. They pick up that knife and have at the cake, slicing a chunk for uncle Joe and a sliver for aunt Mary.

The Wilton chart is supposed to be the "industry standard" slice of cake. Probably 95% of catering halls, restaurants etc wiill cut the cakes to this specification.

I ususally tend to hover somewhere in the middle. On occasion, I will split the difference between Wilton's "party chart & wedding chart", and I have used Earlene's chart also.